应物理学院卜严严老师邀请,华中师范大学侯德富教授近日来我校进行讲学活动,欢迎校内师生参加。
题目:Magnetized thermal dense QCD matter with rotation
时间:2023年7月4日10:00-12:00
地点:理学楼202
摘要:
First, we study the rotation effects of the hot and dense QCD matter in a non-perturbative regime by the gauge/gravity duality. We use the gravitational model that is designated to match the state-of-the-art lattice data on the thermal properties of (2+1)-flavor QCD and predict the location of the critical endpoint and the first-order phase transition line at large baryon chemical potential without rotation. After introducing the angular velocity via a local Lorentz boost, we investigate the thermodynamic quantities for the system under rotation in a self-consistent way. We find that the critical temperature and baryon chemical potential associated with the QCD phase transition decrease as the angular velocity increases. Moreover, some interesting phenomena are observed near the critical endpoint.
Secondly, we calculate the spectral function and dissociation of the heavy vector mesons with the presence of an intense magnetic field in a hot and dense medium. The energy loss of heavy quark in a Magnetized thermal dense QCD matter is also studied. we find that the drag force of heavy quark and jet quenching parameter behave an enhancement near the phase transition temperature. The peak values of drag force and jet quenching parameter are pushed towards lower temperature with increasing B or μ. The heavy quark may lose more energy when perpendicular to magnetic field which is consistent with the results of jet quenching parameter.
主讲人简介:侯德富,华中师范大学二级教授,博雅学者,分别于1986年、1989年、1996年在华中师范大学获得学士、硕士和博士学位,之后在德国Regensburg大学物理论物理研究所、加拿大Winnipeg理论物理研究所、德国Frankfurt大学理论物理所(洪堡学者)从事博士后研究工作。侯德富教授曾获得教育部新世纪优秀人才资助计划支持,教育部自然科学一等奖,两次以第一获奖人获湖北省自然科学二等奖。
侯德富教授主要从事有限温度量子场论及其应用的研究。在热密QCD,输运系数,夸克物质理论,色超导,致密天体,AdS/CFT与强耦合QGP, CME/CVE等方面做出了一系列有意义的工作。在国内外权威期刊上发表学术论文100余篇,包括Phys. Rev. Lett. 3篇。 侯德富教授多次应邀在重要国际会议上(包括 CPOD,ISMD等该领域高级别级会议)作大会报告。侯德富教授主持完成多项国家自然基金面上项目、重点项目,参与承担多项国家基金委重点项目和“973”项目。